– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 3 pm Sun 25 Jan Local TimeUpdates in: hr min sUpdate imminent
Issued: 3 pm Sun 25 Jan Local Time
Updates in:
Update imminent hr min s
Issued: 3 pm Sun 25 Jan Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryModerate rain (total 19mm), heaviest on Tue night. Very mild (max 11°C on Tue morning, min 3°C on Sun afternoon). Wind will be generally light. | Days 5–7 Weather SummaryHeavy rain (total 73mm), heaviest during Fri night. Mild temperatures (max 9°C on Sat morning, min 5°C on Wed night). Wind will be generally light. | ||||||||||||||||
Sun 25 | Monday 26 | Tuesday 27 | Wednesday 28 | Thursday 29 | Friday 30 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | | | | |  |  |  | | | | |  | | | |
clear | some clouds | cloudy | cloudy | some clouds | cloudy | cloudy | heavy rain | mod. rain | light rain | heavy rain | light rain | light rain | heavy rain | heavy rain | mod. rain | heavy rain | |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | — | — | 12 | 7 | 4 | 13 | 4 | 4 | 15 | 11 | 5 | 16 | |
max °C | 5 | 3 | 6 | 5 | 5 | 11 | 9 | 4 | 6 | 6 | 6 | 6 | 7 | 8 | 7 | 6 | 7 |
min °C | 3 | 3 | 5 | 4 | 4 | 8 | 6 | 4 | 5 | 6 | 5 | 6 | 6 | 7 | 6 | 6 | 6 |
3 | 3 | 4 | 3 | 2 | 7 | 4 | 0 | 2 | 3 | 2 | 4 | 4 | 5 | 4 | 4 | 5 | |
1700 | 1550 | 1400 | 1400 | 1600 | 2200 | 2250 | 1300 | 1550 | 1650 | 1550 | 1650 | 1900 | 2050 | 1600 | 1750 | 1800 | |
Cloud base (m) | 6750 | 3500 | 3500 | 3050 | 2150 | 5000 | 3400 | 600 | 600 | 600 | 600 | 600 | 600 | 700 | 750 | 600 | 600 |
 | — | — | 7:43 | — | — | 7:43 | — | — | 7:41 | — | — | 7:41 | — | — | 7:39 | — | — |
 | 4:54 | — | — | 4:55 | — | — | 4:58 | — | — | 4:59 | — | — | 5:00 | — | — | 5:02 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Moderate rain (total 19mm), heaviest on Tue night. Very mild (max 11°C on Tue morning, min 3°C on Sun afternoon). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Heavy rain (total 73mm), heaviest during Fri night. Mild temperatures (max 9°C on Sat morning, min 5°C on Wed night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.